Water injector



Patented Oct. 7, 1924.

UNITED STATES PATENT OFFICE.

JOSEPH CAUTHERY, OF MANCHESTE Application filed August 27, 1921.

To all whom if may concern:

Be it known that we, and J AMES IVILLIAM BANKS, King of Great residents of Hig in the county of La JOSEPH sub] Bradford, in the county of York respectively, ments in Wa application Britain January 30, 1920,

ter

R, AND JA ENGLAN'D.

WATER CAUTHERY ects of the Britain and Ireland, and her Crumpsall, Manchester, ncaster, England, and

, England,

have invented certain Improve- Injectors (for which we filed for Letters Patent 155,187), of which the following fication.

This invention re water injectors use in Great atent No.

is a specilates to improvements in d in connection with waste heat economizers and has reference to that type designed to raise th ture of the fee order to prevent of the latte fed thereto at too low a temperature.

pipes being d water e temperato the economizers in external corrosion of the r clue to the feed water In general the aforesaid type of injector consists of a main end is of hollow conica body which at the lower l form and at the upper end of rectangular form in cross section, a ange projecting internally dividing the two portions referred to.

hollow coni with a flange to rest upon the nozzle being held in p direction by means of intere supports a formed on the jector body respectively,

t the nozzl nozzle and on ing in the main body or casing inoval of a cover internal ange previously inlet connection communicating space around the nozzle and the tion of the injector casing The rectang viously mentioned is provide economizer.

whichl leading from the pump.

of the type referred to is An inject placed in a suitable position in feed pipes system and the economizer.

forced through the pump.

between This flange cal nozzle provided the internal liange, osition in an axial ngaging lugs the main inthe arrangement e can be removed passed through an openby the retherefrom. Below the referred to is an with the lower poreads to the ular chamber pred with an inlet the water the feed pump The feed water is the nozzle of the injector by The result of this a ction is to INJECTOR.

create a suctio ber of the inj Serial No. 496,573.

(GRANTED UNDER THE PROVISIONS F THE ACT OF MARCH 3, 1921, 41 STAT. L.,

MES WILLIAM BANKS, OF BRADFORD,

nal effect in the conical chamect-or beyond the nozzle and so the latt from the provided with a rectangular the angles and pockets energy due to surface an f the economizer.

draw hot water into the injector through the side inlet connecting water outlet pipe o of the hot water thus mixed with er with the hot economizer, is

the cooler water from the hat the temperature of the the economizer is therehe degree required to prevent of the economizer pipes.

water injectors upper chamber result in a loss of d internal friction consequent upon the eddies formed in the incomingwat The object this defect an the injector.

from the feed pipe.

of our invention is to remedy d to increase the efficiency To this end it consists essenovision of an extension of the nozzle previously referred to so that a continuous hollow conica from the inlet at the upper jector to the Our invention will be fu reference to the accompanyi whichdischarge en Fig. 1, is a sectional side water injector constructed with our invention,

Fig. 2, front elevation of In the aforesaid drawings main body of the injector, of nozzle sup orted upon t c, Z the inlet r inlet from the economizer, an

economizer.

In carrying out ou ferred embodiment we g adapted to side of the c conical memb om the pump,

he placed withi asing a at y. er fills up the r l chamber is provided end of the ind of the nozzle. lly described with ng drawings in elevation of a in accordance same. a indicates the the usual type he internal flange e. the hot water hot water outlet pipe of the d f the discharge outlet to the r invention in a preemploy a metal cone n the rectangular chamber 7i above the entrance end of the nozzle Z) such cone being o tion and truncat being equal to th nozzle, the conica upper end i substantia hollow formaed, the smallest diameter e largest diameter of the l surface dying out at its lly flush with the in- The additional ectangular portion of the casing its lower end resting upon the upper end of the nozzle Z9 so as to keep the latter in position, thus doing away with theA interengaging lugs of the old type. The conical member may be'kept in position laterally by means of a removable cover secured to the casing a by studs and nuts and shaped on its inner surface to correspond to the member g. rlhe cover may be provided with a set screw to bear tightly against the conical member. By removing the cover both the latter and the nozzle can be easily removed from position. In Figs. 1, and' 2, we have shown the cover 7a as part of the cone g, the combined unit being secured to the casing a by studs and nuts m. The studs pass through slots n in the' cover to enable a jack screw 0 carried by the upper flange p ofthe casingI a to jam themember g' down on to the vnozzle Z9 before'the cover kis tightened up.

By the arrangements previously described sire to secure by Letters Patent is Ink an injector, a casingprovidedV with two inlets and one outlet and having an Internal shoulder and a lateral opening between the `shoulder and'one inlet, a nozz'levformed-in vtwo sections arranged end to end and supported in the casing between the said inlet and the outlet, the outlet section being held against the said shoulder by the inlet seotion, and the inlet section being removable through the saidlateral openingv inthe casing and provided with a flange which closes the lateral opening, and means which secure the said flange to the casing. y

In testimony whereof we have hereunto set our hands.

JosElPH ,GAUTHERr JAMns WILLIAM emits. 

